I experienced a bug that might be related to this mod, but I'm not sure how I can tell for sure.
I went on my first rescue contract and found the stranded kerbal in a pod with no hatch - one of the USI life support pods. I installed this mod at that time but I guess since I had already loaded the pod, it remained where it was and I still had to edit the save file to move the kerbal to my rescue ship.
When I returned to the surface and the contract completed, I lost all my other contracts ("completed" and "active" lists were empty and contracts I had previously completed showed up as available, all the way back to "orbit kerbin" etc.) and the kerbal I rescued was nowhere to be found. The only contract I had in "completed" was the rescue mission I just finished.
I was able to restore most of the contracts by copying the relevant section from a previous save file, but I did not get the kerbal back.
I experienced the exact same thing the next rescue mission I tried. I guess I'll just avoid rescue missions for now. If there's any information I can provide that can help narrow down the cause please let me know, and sorry if this is the wrong place to report this.